Shell Programming and Scripting

#!/bin/sh

for condition in visual voice word
do
    while read subj
    do
        for row in `awk '{print $4}' ${condition}_${file}.txt`
           do
	       echo "$row" >> ${condition}_items.txt
    done		
	done <subjnumbers.txt
	     done

awk 'FNR==1{A[++a]=$4;next}{A[a]=A[a] OFS $4;next}END {while(A[++i]) print A[i]}' yourfile*.txt

[ctsgnb@shell ~/sand]$ ls f*.txt
f3.txt  f4.txt
[ctsgnb@shell ~/sand]$ cat f3.txt
104 "Congruent\blue_in_blue_1.bmp" 1037 1
104 "Congruent\blue_in_blue_1.bmp" 1225 1
104 "Congruent\blue_in_blue_2.bmp" 807 1
104 "Congruent\blue_in_blue_2.bmp" 960 1
104 "Congruent\blue_in_blue_3.bmp" 1061 1
104 "Congruent\blue_in_blue_3.bmp" 1214 1
[ctsgnb@shell ~/sand]$ cat f4.txt
204 "Congruent\blue_in_blue_2.bmp" 2037 2
204 "Congruent\blue_in_blue_2.bmp" 2225 2
204 "Congruent\blue_in_blue_2.bmp" 807 2
204 "Congruent\blue_in_blue_2.bmp" 960 2
204 "Congruent\blue_in_blue_3.bmp" 2062 2
204 "Congruent\blue_in_blue_3.bmp" 2224 2
[ctsgnb@shell ~/sand]$ awk 'FNR==1{A[++a]=$4;next}{A[a]=A[a] OFS $4;next}END {while(A[++i]) print A[i]}' f*.txt
1 1 1 1 1 1
2 2 2 2 2 2
[ctsgnb@shell ~/sand]$

[ctsgnb@shell ~/sand]$ awk '{print $4}' f*.txt | xargs -n6
1 1 1 1 1 1
2 2 2 2 2 2
[ctsgnb@shell ~/sand]$

#!/bin/sh

# Usage: SCRIPT FILE1 FILE2 ...

for f; do
    awk '{ printf $4 " "}' "$f"
    echo
done | sed 's/^ *//g; s/ *$//g'

 
perl -lane 'BEGIN{$,=" "}$arr[$i++]=$F[3]; if (eof){print @arr;@arr=();$i=0}' input1 input2